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San Mateo and Foster City Wastewater Treatment Plant Expansion

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Source: San Mateo Daily Journal

Project
Under Construction

The project involves the expansion and upgrade of the wastewater treatment plant serving San Mateo and Foster City. The facility will treat wastewater for about 150,000 people and increase processing capacity from 60 million gallons per day to 78 million gallons per day to prevent sewer overflows and unsanitary water discharge into San Francisco Bay. The project is part of a larger 10-year, $1 bil

Status
Under Construction
Sector
Water Supply and Storage, Government, Waste Processing and Treatment
Location
San Mateo, California, United States of America
Updated
22 Jul 2026
Source
San Mateo Daily Journal

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The project “San Mateo and Foster City Wastewater Treatment Plant Expansion” is an infrastructure initiative in the Water Supply and Storage sector, located in San Mateo, California, United States. Taiyo aggregates data on it from San Mateo Daily Journal.

Participants

Sponsoring Agency

Status

Original status

under construction

Taiyo status

Under Construction

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The project involves the expansion and upgrade of the wastewater treatment plant serving San Mateo and Foster City. The facility will treat wastewater for about 150,000 people and increase processing capacity from 60 million gallons per day to 78 million gallons per day to prevent sewer overflows and unsanitary water discharge into San Francisco Bay. The project is part of a larger 10-year, $1 billion Clean Water Program aimed at enhancing wastewater collection and treatment services.

Original sector

Water and Wastewater

Budget

Location

Country

United States of America (USA)

State

California

City

San Mateo

Source

Source

San Mateo Daily Journal

URL

More Details

Record type

Project

Sector

Water Supply and Storage, Government, Waste Processing and Treatment

Article published date

2025-12-06

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